Home / 190,210.39-285,320.77-57,090.65

Finding the Fourth Proportional to 190,210.39, 285,320.77 and 57,090.65

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Solution

The fourth proportional to 190,210.39, 285,320.77 and 57,090.65 is: 85,637.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,210.39 : 285,320.77 = 57,090.65 : x
  2. Step 2: Convert to fraction form
    190,210.39/285,320.77 = 57,090.65/x
  3. Step 3: Cross multiply
    190,210.39x = 285,320.77 × 57,090.65
  4. Step 4: Simplify right side
    190,210.39x = 16,289,146,648.47
  5. Step 5: Solve for x
    x = 16,289,146,648.47/190,210.39
  6. Step 6: Final answer
    x = 85,637.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.